Thameslink wrote on its website: ‘Damage to the overhead wires at Kentish Town is disrupting trains running to and from London St Pancras International.

‘Disruption is expected until the end of the day.’

A Govia Thameslink Railway spokesperson said: ‘We regret that journeys have been severely disrupted this evening due to damage to the overhead wires on the Thameslink route near Kentish Town.

‘Specialist teams from Network Rail have been on site dealing with this issue and were able to fix the damage.

Advertisement

‘GTR organised rail replacement buses and ticket acceptance with other transport operators. There were controlled evacuations of stranded trains where necessary.

‘A limited northbound Thameslink service is now running from St Pancras.

‘Network Rail has apologised for disruption caused this evening.’

British Transport Police Tweeted: Officers are on scene assisting with trains stuck in the tunnel at St Pancras the overhead power is down currently on the Thameslink line so please find alternative routes until further notice.’